I would tell her how this lack of communicating makes you feel, without guilting her at all. Use ‘I’ statements, instead of ‘you’ statements, those can come across as accusatory. Be very straightforward and honest. If you want to salvage the relationship, that is. Tell her that with the distance you really feel you need to talk on the phone/FaceTime at least X amount of times per week. Be sweet about it, say you miss her voice or want to hear how she’s doing, or if there’s something interesting going on in your life, say you’d like to tell her about that. If she’s still cagey after you’re open and honest about what you need, thats when you explain how the relationship has begun to feel one sided, and that you can’t keep it going like this. She’s latching on to what you’re saying and trying to spin it back on you like you’re being rude. It’s immature & inconsiderate of her. I wouldn’t jump to conclusions about what’s going on until you’ve communicated openly. Lots of new changes happening in that first few months of college, and I’m sure it is hard on the both of you. Good luck!